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Determining the pH level of water in different water stations in Barangay Concepcion Uno, Marikina City in correspondence to the environment protection agency standards with the use of litmus paper.

By: San Jose, Nina Elaine CContributor(s): Mary Margarette R. Montalla, Louise Sheanne S. Opeña, Darren Paul S. Pascual, Arthur Vince Ivan P. Racoma, Jose Emilio V. Ricafrante and Leandro M. ZamoraMaterial type: TextTextPublisher: Marikina City March 2019Description: vi, 55pages; illustration; 28cmSubject(s): 1. Drinking water -- Philippines -- StandardsLOC classification: TD 430 | V36 2019
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